JP2794205B2 - Pot sheet seeding device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial application field) The present invention relates to a pot sheet sowing apparatus particularly suitable for feeding coated vegetable seeds one by one accurately to a depression formed in an upper part of a pot. It is related to.

(Prior Art) Japanese Patent Application Laid-Open No. 63-237708 discloses a pot sheet in which paper pots are vertically and horizontally connected, a horizontal transfer table for feeding a seedling box into which the pot sheet is fitted, and a A vegetable pot sheet comprising a sowing device provided at a position above a horizontal transfer table is described.

(Problem to be Solved by the Invention) Although the horizontal transfer table of the known example is formed by an endless belt, the drop of seeds by the sowing device and the transfer of pots by the transfer conveyor can be accurately performed without any errors. It must be synchronized, but in this regard, the prior art lacks consideration.

In order to transfer the pot sheet accurately without any error, instead of simply transferring the pot sheet by the endless belt as in the known example, it is preferable to replace the endless belt with a chain and use a transfer protrusion. In the transfer by the endless belt, there is slippage of the endless belt and the pulley. When the chain is replaced with a chain, the above-mentioned slippage disappears, but it may slip on the chain.

(Purpose of the Invention) Therefore, the present invention is intended to make it possible to transfer by a transfer protrusion provided on a chain, and to make a nursery box adhere to the transfer protrusion.

(Means for Solving the Problems) Accordingly, the present invention provides a pot sheet 1 in which pots 2 are vertically and horizontally connected, a horizontal transfer table 9 for horizontally feeding a storage box 7 in which the pot sheets 1 are fitted, In the pot sheet sowing apparatus including the sowing apparatus 11 provided above the transfer table 9, the horizontal transfer table 9 is provided with a transfer conveyor 10 for transferring the storage box 7 to the sowing apparatus 11, The conveyor 10 has a structure in which a chain 12 to which a transfer protrusion 13 is attached is wound endlessly at an interval larger than the length of the storage box 7, and on the side of the horizontal transfer table 9 on the front side of the seeding device 11, This is a pot sheet seeding apparatus in which a fixed guide 18 and an elastic guide 20 through which the storage box 7 is elastically pressed and passed are opposed to each other.

(Embodiment) An embodiment of the present invention will be described with reference to the drawings. Reference numeral 1 denotes a vegetable pot sheet formed of a paper material that rots and softens in a wet state. 2
The upper edge 3 is vertically and horizontally connected to form a square shape, and one pot 2 is cut into thousands with a planting claw of a transplanter and transplanted to a field.
Since the pot 2 of the present invention is used for vegetables such as lettuce seedlings, the pot 2 is formed to have about four times the volume of rice.

4 is a bottom surface of the pot 2, and 5 is a through hole formed in the center of the bottom surface 4. The pot sheet 1 is not shown in the drawing,
On the mounting plate having a large number of upward projections, the projections are placed with the bottom surface 4 down so that the projections protrude into the respective pots 2 from the through-holes 5. Filling,
After placing the storage box 7 from above and inverting it to remove the mounting plate, and after the protrusions have come off, a depression 8 is formed inside the through hole 5 as shown in FIG. The seeds such as lettuce or the like which have been coated into the depressions 8 and formed into a spherical shape are surely sowed one by one.

Reference numeral 9 denotes a horizontal transfer table for supplying the sieve soil 6 and transferring the storage box 7 fitted with the pot sheet 1 having the depression 8 formed thereon, and is mounted on the floor by supporting legs provided at desired positions. . The horizontal transfer table 9 is provided with a transfer conveyor 10 for transferring the storage box 7.

A seeding device 11 for sowing seeds one by one through the through hole 5 in the depression 8 is provided at an upper position on the end side of the transfer conveyor 10. Although the seeding device 11 is not shown, the seeding port of the dropping portion provided at the lower part is aligned with the through hole 5 of each pot 2 of the pot sheet 1 so that the seeding is performed while moving in the transfer direction of the pot sheet 1. Therefore, the transfer conveyor 10 is configured so that the seed dropping port of the seeding device 11 and the through hole 5 of each pot 2 are synchronized.

The transfer conveyor 10 has two chains 12, 12 arranged side by side at predetermined intervals in the left-right direction, and a transfer projection 13 having an L-shaped cross section in the left-right direction is attached to the chains 12, 12 at predetermined intervals (the 3
FIG.), The storage box 7 is transferred to the seeding device by the transfer projection 13.
Transfer to synchronize with 11.

14 is a passive gear mounted on the starting end side of the horizontal transfer table 9;
Is a drive gear mounted on the end side of the horizontal transfer table 9,
The chain 12 is looped between the gear 14 and the gear 15.

In front of the seeding device 11, the storage box 7
Seeding device with a stopper for temporarily stopping the storage and the storage box 7
A stopper / guide device 16 is provided, which also serves as a guide for guiding the center 11 downward.

That is, when the storage box 7 is placed on the chains 12, 12, the storage box 7 is advanced by the chains 12, 12 before being pushed by the transfer projection 13, so that the synchronization with the seeding device 11 is lost (first 3), the storage box 7 is temporarily stopped by sliding on the chains 12, 12 in front of the seeding device 11, and is surely transferred by the transfer protrusion 13.

The stopper / guide device 16 is formed by providing a fixed guide 18 on a frame 17 on one side of the horizontal transfer table 9 and an elastic guide 20 on a frame 19 on the other side.

The fixed guide 18 is disposed so as to be in sliding contact with the side surface of the moving storage box 7 on the central upright wall 21 at the central portion, and is inclined at the rear side of the central upright wall 21 so as to be located outward as it reaches the rear. The rear upright wall 22 is formed integrally.

When viewed from above, the elastic guide 20 is formed in a semicircular shape in which an intermediate guide portion 24 at the front and rear intermediate portion of the elastic guide 20 protrudes toward the fixed guide 18, the front end is fixed to the frame 19, and the rear end 23 is Form at the free end.

The intermediate guide portion 24 is located inside the side surface of the moving storage box 7 and faces the rear upright wall 22 of the fixed guide 18.

That is, when one side of the front wall of the moving storage box 7 first comes into contact with the rear end 23 of the elastic guide 20, it is pushed toward the center by the elasticity of the elastic guide 20, and the other side of the storage box 7 is fixed guide.
18 abuts the rear standing wall 22 and slides on the chains 12, 12 to stop moving. The transfer protrusion 13 follows the stopped storage box 7 and moves below the seeding device 11 against the elasticity of the elastic guide 20.

25 is a guide provided below the seeding device 11.

(Operation) Next, the operation will be described.

Since the present invention has the above-described configuration, the pot sheet 1 is formed such that the top of the mounting plate having a large number of protrusions has the bottom surface 4 facing down and the tips of the protrusions of the mounting plate protrude into the pot 2 from the through holes 5.
And put the sieve soil 6 into it to suppress the pressure, cover the pot sheet 1 with the inverted storage box 7, turn over the storage box 7, and remove the upper mounting plate. Is obtained in which the depression 8 is formed in the inside of the bottom surface 4.

When the storage box 7 fitted with the pot sheet 1 is supplied to the start end of the transfer conveyor 10 of the horizontal transfer table 9, the transfer conveyor 10 is formed by attaching transfer protrusions 13 in the left-right direction to the two chains 12, 12. Therefore, the storage box 7 starts to move forward by the chains 12, 12 before the transfer projection 13 comes into contact with the rear wall of the storage box 7, and synchronization with the seeding device 11 is lost.

In the present invention, the horizontal transfer table 9 in front of the seeding device 11 includes:
One is provided with a fixed guide 18 for fixing the position, and the other is provided with a stopper / guide device 16 formed of an elastic member and formed of an elastic guide 20 protruding into the transfer path of the storage box 7. One front end of the storage box 7 contacts the intermediate guide portion 24 of the elastic guide 20 of the stopper / guide device 16, and the other front end of the storage box 7 is connected to the intermediate guide portion 24 of the elastic guide 20.
Due to the elasticity of the fixed guide 18, the fixed guide 18 is pressed against the rear upright wall 22 and temporarily stops moving.

When the storage box 7 is supplied to the horizontal transfer table 9 and the storage box 7 is placed on the side close to the fixed guide 18, the front end of the storage box 7 contacts the rear upright wall 22 of the fixed guide 18. Touching,
The transfer is stopped.

Therefore, irrespective of the position of the transfer protrusion 13 of the transfer conveyor 10, even if the storage box 7 is placed on the chains 12, 12, the transfer protrusion 13 abuts against the rear wall of the storage box 7 that is stopped. .

When the storage box 7 moves forward by the transfer protrusion 13, the front end of the storage box 7 is guided to the center position of the horizontal transfer table 9 by the rear upright wall 22 while pushing the intermediate guide portion 24 of the elastic guide 20 outward. Further, the seeds are guided by the guides 25 and 25 to reach the lower part of the seeding device 11, and the seed dropping hole formed at the lowermost dropping portion of the seeding device 11 and the depression 8 of the pot 2 move and are sown while being aligned. .

The elastic guide 20 is formed in a semicircular arc shape,
The direction in which the elasticity of the intermediate guide portion 24 pertains to the side wall of the storage box 7 is the direction toward the center of the horizontal transfer table 9, so that when the rear end of the storage box 7 separates from the intermediate guide portion 24, the intermediate guide The elasticity of the part 24 does not affect the transfer speed of the storage box 7.
Therefore, the storage box 7 reaches the lower part of the seeding device 11 only by the forward force of the transfer projection 13, so that the transfer of the storage box 7 and the seeding of the seeding device 11 can be synchronized.

That is, when the forward speed of the storage box 7 is accelerated by the elasticity of the guide 20 when the rear end of the storage box 7 is separated from the elastic guide 20, the transfer of the storage box 7 and the seeding of the seeding device 11 are performed. Synchronization will go out of order.

(Effect) The present invention provides a pot sheet 1 in which pots 2 are arranged vertically and horizontally.
And a horizontal transfer table 9 for laterally feeding the storage box 7 with the pot sheet 1 fitted therein, and a seeding apparatus 11 provided above the horizontal transfer table 9. The table 9 is provided with a transfer conveyor 10 for transferring the storage box 7 to the seeding device 11.
Are transport projections 13 spaced apart from the length of the storage box 7 by a distance.
The storage box 7 is elastically pressed on the horizontal transfer table 9 side on the front side of the seeding device 11 and the fixed guide 18 and the elastic guide. Since the pot sheet seeding device is arranged so as to face the guide 20, one front end of the storage box 7 abuts against the elastic guide 20, and the other front end of the storage box 7 has the elasticity of the elastic guide 20. To the fixed guide 18 side
As it abuts the rear standing wall 22 of 18 and temporarily stops moving,
Regardless of the position of the transfer protrusion 13 of the transfer conveyor 10, the chain
Even when the storage box 7 is placed on the storage box 12, the transfer projection 13 abuts against the rear wall of the storage box 7 that is stopped and comes into contact with the storage box 7. This has the effect of being able to be transported in synchronization with.

[Brief description of the drawings]

FIG. 1 is a plan view of the entire apparatus, FIG. 2 is a view showing a state in which a seedling raising box is placed, and FIG. 3 is a plan view showing an operation state. DESCRIPTION OF SYMBOLS 1 ... pot sheet, 2 ... pot, 3 ... upper edge, 4 ...
... bottom, 5 ... through-hole, 6 ... sieve soil, 7 ... storage box, 8 ...
... hollow, 9 ... flat transfer table, 10 ... transfer conveyor, 11 ...
Seeding device, 12: Chain, 13: Transfer protrusion, 14: Passive gear, 15: Drive gear, 16: Stopper and guidance device,
17 …… Frame, 18 …… Fixed guide, 19 …… Frame,
Reference numeral 20: elastic guide, 21: middle standing wall, 22: rear standing wall, 23: rear end, 24: middle guide part, 25: guide guide.

Claims (1)

(57) [Claims] 1. A pot sheet 1 in which pots 2 are arranged vertically and horizontally.
A horizontal transfer table 9 for laterally feeding the storage box 7 with the pot sheet 1 fitted therein, and a seeding apparatus 11 provided at a position above the horizontal transfer table 9. The table 9 is provided with a transfer conveyor 10 for transferring the storage box 7 to the seeding device 11.
Are transport projections 13 spaced apart from the length of the storage box 7 by a distance.
The storage box 7 is elastically pressed and passes through a fixed guide 18 on the side of the horizontal transfer table 9 on the front side of the seeding apparatus 11 and an elasticity. A pot sheet seeding device in which the guide 20 is disposed facing the surface.